Skype for Business gives no X.224 response to my request RRS feed

  • Question

  • hi, 

    I meet another issue with my C++ application, which is trying to get Lync client sharing content with SIP federation. The interesting part here is that one Lync Client ( Version: 15.0.4420.1017 MSO 15.0.4420.1017 64bits) works fine with my application. But another Lync Client( Version: Skype For Business 2015 15.0.4763.1001 MSO 15.0.4763.1003 32bits) does not work.

    The detailed info is that my application works as RDP client and Skype For Business as RDP Server; my application gets the TCP connection from Skype for Business and sends out the first X.224 Connection Request PDU according to MS-RDPBCGR. The Skype for Business does not give me any response until it's time out. 

    Network dump of the fist CR PDU.

    0000   00 17 80 7f 00 00 00 00 23 28 20 10 09 11 03 00
    0010   00 0b 06 e0 00 7b 02 00 00

    Best Regards,


    Tuesday, November 10, 2015 2:53 AM

All replies

  • Hi Green,

    Thanks for the details on your Skype for Business RDP connection request issue, our team is working on this and will be in contact.

    Best regards,
    Tom Jebo
    Microsoft Open Specifications

    Tuesday, November 10, 2015 6:02 AM
  • Hello Green :

    We believe this query is duplicate of what you sent us yesterday at dochelp . As per discussion through dochelp, the reason of failure is bug in your code, which stands fixed now.

    Please let us know if our understanding is incorrect.


    Tarun Chopra | Escalation Engineer | Open Specifications Support Team

    Tuesday, November 10, 2015 5:04 PM